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Open AccessJournal ArticleDOI

Organization and Ca2+ Regulation of Adenylyl Cyclases in cAMP Microdomains

Debbie Willoughby, +1 more
- 01 Jul 2007 - 
- Vol. 87, Iss: 3, pp 965-1010
TLDR
The regulation of many of the ACs by the ubiquitous second messenger Ca(2+) provides an overarching mechanism for integrating the activities of these two major signaling systems, and cAMP will exhibit distinct kinetics in discrete cellular domains.
Abstract
The adenylyl cyclases are variously regulated by G protein subunits, a number of serine/threonine and tyrosine protein kinases, and Ca2+. In some physiological situations, this regulation can be re...

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Citations
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Journal ArticleDOI

Regulation by Ca2+-Signaling Pathways of Adenylyl Cyclases

TL;DR: Evidence is evaluated for regulation of adenylyl cyclases (ACs) by Ca(2+)-signaling pathways, with an emphasis on verification of this regulation in a physiological context, and major gaps are apparent in the interactions that have been assumed.
Book ChapterDOI

G-protein-coupled receptor-signaling components in membrane raft and caveolae microdomains.

TL;DR: This review focuses on the properties of lipid rafts and caveolae, the mechanisms by which they localize signaling molecules and the identity of GPCR signaling components that are organized in these domains.
Journal ArticleDOI

International union of basic and clinical pharmacology. CI. structures and small molecule modulators of mammalian adenylyl cyclases

TL;DR: Understanding of the (patho)physiology of AC isoforms and the development of clinically useful drugs targeting ACs is still in its infancy, in contrast to the guanylyl cyclase field.
Journal ArticleDOI

Store-operated cyclic AMP signalling mediated by STIM1.

TL;DR: A pathway is proposed in which the content of internal Ca2+ stores is directly connected to cAMP signalling through a process that involves STIM1, which resulted in enhanced cAMP accumulation and PKA activation, measured using FRET-based cAMP indicators.
References
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Journal ArticleDOI

Lipid rafts and signal transduction

TL;DR: It is now becoming clear that lipid micro-environments on the cell surface — known as lipid rafts — also take part in this process of signalling transduction, where protein–protein interactions result in the activation of signalling cascades.
Journal ArticleDOI

Store-operated calcium channels.

TL;DR: The key electrophysiological features of I(CRAC) and other store-operated Ca(2+) currents and how they are regulated are described, and recent advances that have shed insight into the molecular mechanisms involved in this ubiquitous and vital Ca( 2+) entry pathway are considered.
Journal ArticleDOI

Cyclic nucleotide phosphodiesterases: functional implications of multiple isoforms

TL;DR: This article reviews many of the more important aspects about the structure, cellular localization, and regulation of each family of phosphodiesterases and places particular emphasis on new information obtained in the last few years about how differential expression andregulation of individual phosphodiesters relate to their function(s) in the body.
Journal ArticleDOI

The role of hormone receptors and GTP-regulatory proteins in membrane transduction

TL;DR: Cell membrane receptors for hormones and neurotransmitters form oligomeric complexes with GTP-regulatory proteins and inhibit the latter from reacting with G TP, and this theory may apply generally to membrane signal transduction involving surface receptors.
Journal ArticleDOI

Lipid Rafts: Elusive or Illusive?

TL;DR: There has been considerable recent interest in the possibility that the plasma membrane contains lipid "rafts," microdomains enriched in cholesterol and sphingolipids, and it seems that a definitive proof of raft existence has yet to be obtained.
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